```xml
<?xml version="1.0" encoding="UTF-8"?>
<game>
  <title>Calculation Fun Game</title>
  <slug>calculation-fun-game</slug>
  <short-desc>Test your mental math! Solve addition, subtraction, and multiplication problems against the clock in this fast-paced calculation game.</short-desc>
  <categories>
    <category>Math</category>
    <category>Educational</category>
    <category>Brain Game</category>
  </categories>
  <keywords>math game, calculation game, arithmetic game, brain game, educational game, timed math game, mental math, number game, addition game, subtraction game, multiplication game</keywords>
  <content>
# About Calculation Fun Game

Calculation Fun Game is an engaging browser-based game designed to challenge and improve your basic arithmetic skills. Test your speed and accuracy by solving a series of math problems involving addition, subtraction, and multiplication. Each game round presents you with 10 questions, each with a strict time limit, pushing you to think fast and calculate correctly.

The game features a clean and simple interface, making it easy to jump right into the action. Track your score as you play, earning points for correct answers and facing small penalties for incorrect ones or running out of time. Can you beat the clock and achieve a perfect score?

Whether you're looking to sharpen your mental math, provide an educational tool for students, or just enjoy a quick brain teaser, Calculation Fun Game offers a fun and stimulating experience. Start a game and see how quickly you can crunch the numbers!

## How to Play

1.  **Start the Game:** Click the "Start Game" button to begin a round.
2.  **Solve the Problem:** A math problem (e.g., "5 + 7 =", "12 - 4 =", "6 × 3 =") will appear on the screen. A 10-second timer starts immediately for that question.
3.  **Enter Your Answer:** Type your numerical answer into the input field provided.
4.  **Submit:** Click the "Submit" button or press the Enter key on your keyboard before the timer runs out.
5.  **Get Feedback:** The game will tell you if your answer was correct or wrong. If you ran out of time, it will indicate that.
6.  **Scoring:** You gain 10 points for each correct answer. You lose 2 points for each incorrect answer or if time runs out (your score won't drop below zero).
7.  **Next Question:** After a brief pause showing the result, the next question will appear automatically.
8.  **Game End:** The game consists of 10 questions. Once you complete all 10, your final score will be displayed. You can then choose to play again by clicking "Restart Game".

## Features

- **Timed Challenges:** Each question has a 10-second time limit, adding excitement and urgency.
- **Varied Operations:** Solve problems involving addition, subtraction, and multiplication with numbers typically up to 12 (or 9 for multiplication).
- **Dynamic Scoring:** Earn 10 points for correct answers and lose 2 points for errors or timeouts, encouraging accuracy.
- **Fixed Rounds:** Each game session consists of exactly 10 questions.
- **Clean Interface:** Simple and intuitive design allows you to focus on the calculations.
- **Responsive Design:** Playable on both desktop and mobile browsers.
- **Instant Feedback:** See immediately if your answer was right or wrong.

## Controls

- **Keyboard:** Use the number keys to type your answer into the input field. Press the `Enter` key to submit your answer.
- **Mouse:** Click the "Start Game" / "Restart Game" button to begin or play again. Click the "Submit" button to submit your answer.

## Tips & Strategies

- **Focus on Accuracy:** While speed is important due to the timer, avoiding the penalty for wrong answers is key to a high score. Double-check your calculation quickly if possible.
- **Master Multiplication:** Since multiplication problems up to 9x9 are included, knowing your times tables well will save valuable seconds.
- **Don't Panic on Timeouts:** If you get stuck, it's better to let the time run out (losing 2 points) than to guess wildly and potentially lose points anyway. Move on mentally to the next question.
  </content>
  <faq>
    <question>How do I save my progress in the game?</question>
    <answer>Your progress is automatically saved as you play.</answer>
    
    <question>Can I play this game on mobile devices?</question>
    <answer>Yes, this game is fully compatible with mobile browsers.</answer>
    
    <question>Is this game free to play?</question>
    <answer>Yes, the game is completely free to play in your browser.</answer>
  </faq>
  <specifications>
    <multiplayer>false</multiplayer>
  </specifications>
</game>
```

An interactive game created with AI assistance